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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! The high-level interface from script to constellation. Using this abstract interface helps reduce
/// coupling between these two components
use std::comm::{Chan, SharedChan};
use extra::url::Url;
use extra::future::Future;
use geom::size::Size2D;
use geom::rect::Rect;
#[deriving(Clone)]
pub struct ConstellationChan {
chan: SharedChan<Msg>,
}
impl ConstellationChan {
pub fn new(chan: Chan<Msg>) -> ConstellationChan {
ConstellationChan {
chan: SharedChan::new(chan),
}
}
pub fn send(&self, msg: Msg) {
self.chan.send(msg);
}
}
pub enum Msg {
ExitMsg(Chan<()>),
InitLoadUrlMsg(Url),
FrameRectMsg(PipelineId, SubpageId, Rect<f32>),
LoadUrlMsg(PipelineId, Url, Future<Size2D<uint>>),
LoadIframeUrlMsg(Url, PipelineId, SubpageId, Future<Size2D<uint>>),
NavigateMsg(NavigationDirection),
RendererReadyMsg(PipelineId),
ResizedWindowMsg(Size2D<uint>),
}
/// Represents the two different ways to which a page can be navigated
#[deriving(Clone, Eq, IterBytes)]
enum NavigationType {
Load, // entered or clicked on a url
Navigate, // browser forward/back buttons
}
#[deriving(Clone, Eq, IterBytes)]
pub enum NavigationDirection {
Forward,
Back,
}
#[deriving(Clone, Eq, IterBytes)]
pub struct PipelineId(uint);
#[deriving(Clone, Eq, IterBytes)]
pub struct SubpageId(uint);
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